$size: 80px;
.footer{
    position: fixed;left: 0;bottom: 0;width: 100%;height: 88px;background: #fff;
    .weui-cell{padding-right: 0;padding-bottom: 0;padding-top: 0;}
    .settle-btn{width: 220px;height: 88px;line-height: 88px;background-color: #f00;color: #fff;text-align: center;}
    
}